leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

RDMA/nes: Make nesadapter->phy_lock usage consistent

Browse Source 
nes_{read,write}_1G_phy_reg() are using phy_lock while
nes_{read,write}_10G_phy_reg() leave that to the caller.

Remove phy_lock from 1G routines and leave the locking to the caller.
Add additional phy_lock calls around 1G read/write.

Signed-off-by: Chien Tung <chien.tin.tung@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Chien Tung 2010-03-09 21:50:40 +00:00 committed by Roland Dreier
parent 0eddb519b9
commit ce6e74f23d
3 changed files with 14 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/infiniband/hw/nes/nes_hw.c
View File

@ -2458,7 +2458,6 @@ static void nes_process_mac_intr(struct nes_device *nesdev, u32 mac_number)
return;
}
nesadapter->mac_sw_state[mac_number] = NES_MAC_SW_INTERRUPT;
spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
/* ack the MAC interrupt */
mac_status = nes_read_indexed(nesdev, NES_IDX_MAC_INT_STATUS + (mac_index * 0x200));
@ -2469,11 +2468,9 @@ static void nes_process_mac_intr(struct nes_device *nesdev, u32 mac_number)
if (mac_status & (NES_MAC_INT_LINK_STAT_CHG | NES_MAC_INT_XGMII_EXT)) {
nesdev->link_status_interrupts++;
if (0 == (++nesadapter->link_interrupt_count[mac_index] % ((u16)NES_MAX_LINK_INTERRUPTS))) {
spin_lock_irqsave(&nesadapter->phy_lock, flags);
if (0 == (++nesadapter->link_interrupt_count[mac_index] % ((u16)NES_MAX_LINK_INTERRUPTS)))
nes_reset_link(nesdev, mac_index);
spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
}
/* read the PHY interrupt status register */
if ((nesadapter->OneG_Mode) &&
(nesadapter->phy_type[mac_index] != NES_PHY_TYPE_PUMA_1G)) {
@ -2587,6 +2584,7 @@ static void nes_process_mac_intr(struct nes_device *nesdev, u32 mac_number)
break;
}
}
spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
if (phy_data & 0x0004) {
if (wide_ppm_offset &&

16
drivers/infiniband/hw/nes/nes_nic.c
View File

@ -1461,11 +1461,14 @@ static int nes_netdev_get_settings(struct net_device *netdev, struct ethtool_cmd
et_cmd->transceiver = XCVR_INTERNAL;
et_cmd->phy_address = mac_index;
} else {
unsigned long flags;
et_cmd->supported = SUPPORTED_1000baseT_Full
| SUPPORTED_Autoneg;
et_cmd->advertising = ADVERTISED_1000baseT_Full
| ADVERTISED_Autoneg;
spin_lock_irqsave(&nesadapter->phy_lock, flags);
nes_read_1G_phy_reg(nesdev, 0, phy_index, &phy_data);
spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
if (phy_data & 0x1000)
et_cmd->autoneg = AUTONEG_ENABLE;
else
@ -1503,12 +1506,15 @@ static int nes_netdev_set_settings(struct net_device *netdev, struct ethtool_cmd
struct nes_vnic *nesvnic = netdev_priv(netdev);
struct nes_device *nesdev = nesvnic->nesdev;
struct nes_adapter *nesadapter = nesdev->nesadapter;
u16 phy_data;
if ((nesadapter->OneG_Mode) &&
(nesadapter->phy_type[nesdev->mac_index] != NES_PHY_TYPE_PUMA_1G)) {
nes_read_1G_phy_reg(nesdev, 0, nesadapter->phy_index[nesdev->mac_index],
&phy_data);
unsigned long flags;
u16 phy_data;
u8 phy_index = nesadapter->phy_index[nesdev->mac_index];
spin_lock_irqsave(&nesadapter->phy_lock, flags);
nes_read_1G_phy_reg(nesdev, 0, phy_index, &phy_data);
if (et_cmd->autoneg) {
/* Turn on Full duplex, Autoneg, and restart autonegotiation */
phy_data |= 0x1300;
@ -1516,8 +1522,8 @@ static int nes_netdev_set_settings(struct net_device *netdev, struct ethtool_cmd
/* Turn off autoneg */
phy_data &= ~0x1000;
}
nes_write_1G_phy_reg(nesdev, 0, nesadapter->phy_index[nesdev->mac_index],
phy_data);
nes_write_1G_phy_reg(nesdev, 0, phy_index, phy_data);
spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
}
return 0;

10
drivers/infiniband/hw/nes/nes_utils.c
View File

@ -381,12 +381,8 @@ static u16 nes_read16_eeprom(void __iomem *addr, u16 offset)
*/
void nes_write_1G_phy_reg(struct nes_device *nesdev, u8 phy_reg, u8 phy_addr, u16 data)
{
struct nes_adapter *nesadapter = nesdev->nesadapter;
u32 u32temp;
u32 counter;
unsigned long flags;
spin_lock_irqsave(&nesadapter->phy_lock, flags);
nes_write_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL,
0x50020000 | data | ((u32)phy_reg << 18) | ((u32)phy_addr << 23));
@ -402,8 +398,6 @@ void nes_write_1G_phy_reg(struct nes_device *nesdev, u8 phy_reg, u8 phy_addr, u1
if (!(u32temp & 1))
nes_debug(NES_DBG_PHY, "Phy is not responding. interrupt status = 0x%X.\n",
u32temp);
spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
}
@ -414,14 +408,11 @@ void nes_write_1G_phy_reg(struct nes_device *nesdev, u8 phy_reg, u8 phy_addr, u1
*/
void nes_read_1G_phy_reg(struct nes_device *nesdev, u8 phy_reg, u8 phy_addr, u16 *data)
{
struct nes_adapter *nesadapter = nesdev->nesadapter;
u32 u32temp;
u32 counter;
unsigned long flags;
/* nes_debug(NES_DBG_PHY, "phy addr = %d, mac_index = %d\n",
phy_addr, nesdev->mac_index); */
spin_lock_irqsave(&nesadapter->phy_lock, flags);
nes_write_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL,
0x60020000 | ((u32)phy_reg << 18) | ((u32)phy_addr << 23));
@ -441,7 +432,6 @@ void nes_read_1G_phy_reg(struct nes_device *nesdev, u8 phy_reg, u8 phy_addr, u16
} else {
*data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
}
spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
}